Okra, ash constituents of, 475 composition of, 490 fuel value of, 468, 490 nutrient value of, 468 Oleo, vitamines in, 497, 498 Olives, ash constituents of, 475 composition of, 490 fuel value of, 468, 490 nutrient value of, 468 Olive oil, composition of, 490 fuel value of, 490 Olmstead bran cakes, preparation of, 148 Onion, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 vitamines in, 496 Operations, diet in relation to, 312 Orange, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 vitamines in, 497 Orangeade, preparation of, 96 Orange charlotte, preparation of, 138, 162 Orange ice, preparation of, 136, 137, 161 Orange jelly, preparation of, 135, 160 Orange rice custard, preparation of, 108 Orange tapioca, preparation of, 106 Organic acids, 13 Over-dilution of infant's food, 232 Over-feeding of infants and children, 243 Oxidases, 171 Oxtail soup, fuel value of, 468 nutrient value of, 468 Oyster broth, preparation of, 119 Oyster soup, preparation of, 94 Oysters, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 Pancreas, vitamines in, 496 Panopepton, composition of, 492 fuel value of, 492 Panopepton eggnog, preparation of, 99 Paprika, ash constituents of, 475 Parsley butter, preparation of, 154 Parsnips, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 vitamines in, 496 Pasteurization, 85, 211 Pea soup, fuel value of, 468 nutrient value of, 468 Peaches, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 Peanut butter, composition of, 492 fuel value of, 492 Peanuts, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 vitamines in, 497 Pears, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 vitamines in, 497 Pear juice, ash constituents of, 475 Peas, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 468, 492 nutrient value of, 468 standard portion of, 481 vitamines in, 496, 497 Pecans, ash constituents of, 475 composition of, 492 food content of, 481 fuel value of, 492 standard portion of, 481 "Pelidisi," the, 503 Pelidisi chart, 502